• EQUAL : mi
• GREATER : mi
• LESS : mi
• MESSAGE_SEVERITY_DEBUG : mi::base
• MESSAGE_SEVERITY_ERROR : mi::base
• MESSAGE_SEVERITY_FATAL : mi::base
• MESSAGE_SEVERITY_INFO : mi::base
• MESSAGE_SEVERITY_VERBOSE : mi::base
• MESSAGE_SEVERITY_WARNING : mi::base
• NEGATIVE : mi
• POSITIVE : mi
• ZERO : mi